Hardness definition

härdnĭs
The relative resistance of a metal or other material to denting, scratching, or bending.
noun
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12
The relative resistance of a mineral to scratching, as measured by the Mohs scale.
noun
2
6
The quality of being hard.
noun
1
6
(mineralogy) The relative capacity of a substance for scratching another or for being scratched by another.
noun
0
6
An instance of this quality; hardship.
noun
0
6
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A measure of how easily a mineral can be scratched. Hardness is measured on the Mohs scale.
0
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The state or quality of being hard (in various senses)
noun
7
16
The quality or condition of being hard.
noun
3
17

Other Word Forms

Noun

Singular:
hardness
Plural:
hardnesses

Origin of hardness

  • From hard +‎ -ness.

    From Wiktionary

Hardness Sentence Examples

  • The hardness came back into his eyes and he looked away.

  • You get used to knowing the different types of hardness and thickness.

  • With repeated hammering, drawing out and annealing, it gains much in strength and toughness, and the addition of a very minute quantity of carbon converts it into steel, less tough, but of the keenest hardness.

  • The bearing of the pivot is called a step or footstep. Pivots require great hardness, and are usually made of steel.

  • The characters of softness or hardness, dryness or moisture, &c., are taken account of in these classifications.

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Words near hardness in the Dictionary